Negative climb rate after take-off warning system with predetermined loss of altitude inhibit
US3947810A · kind A · utility
42Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1975 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Jan 22, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0661
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a warning system for aircraft that generates a warning signal when the aircraft is descending during a take-off or missed approach phase of operation, the warning is inhibited for a predetermined loss of altitude in order to allow the aircraft to descend a short distance without triggering a nuisance warning. Specifically, a circuit is provided to integrate a signal representing the aircraft's rate of descent until the integrated signal is equal to a predetermined drop in altitude whereupon the warning signal is triggered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.